あたま 頭でっかち LinksSentence search for 頭でっかちSentence search for あたまでっかちKanji details for 頭Edit in JMdict Na-adjective (keiyodoshi), Noun which may take the genitive case particle 'no', Noun1. top-heavyうちのかいしゃうちの会社はあたま頭でっかちだ。Our company is too top-heavy.Na-adjective (keiyodoshi), Noun which may take the genitive case particle 'no', Noun2. big-headedNa-adjective (keiyodoshi), Noun which may take the genitive case particle 'no', Noun3. overly-theoreticalかれ彼はあたま頭でっかちだ。He is an armchair theorist. Discussions Log in to talk about this word.